This is a really interesting idea, I like it a lot.

It would be a good idea to keep an item that you can wear by your bed that is sensually tactile, but that you only ever put on just before going to sleep.

This could work well by doing reality checks regularly during the day where you check to see if you are wearing/ can feel the item. If you can, you're dreaming!

You could even use some long burning incense in your bedroom. Reality check to see if you can smell it all day and when you do smell it you are dreaming.

I might try this out myself. Let you know.

Happy dreaming.